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LB11660RV bảng dữ liệu(PDF) 7 Page - ON Semiconductor |
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LB11660RV bảng dữ liệu(HTML) 7 Page - ON Semiconductor |
7 / 9 page LB11660RV www.onsemi.com 7 *5 <Hall input> Wiring need to be short to prevent carrying of the noise. The Hall input circuit is a comparator having a hysteresis of 20mV. It is recommended that the Hall input level be more than three times (60mVp-p) this hysteresis. *6 < PWM oscillation frequency setting capacitor > The oscillation frequency is 23kHz when CP = 200pF and 46kHz when CP = 100pF, and this serves as the PWM fundamental frequency. For the most part, the PWM frequency can be obtained from the following formula: f [kHz] (4.6106) ÷C [pF] *7 <RD output> This is the open collector type output, which outputs ''L'' during rotation. It is set to 'OFF' when a lock is detected. This output is left open when not in use. *8 <HB pin> This is a Hall element bias pin, that is, the 1.25V constant-voltage output pin. *9 <RMI pin> Lowest speed setting pin for speed control. The minimum output duty setting is made with R3 and R4. The R4 is left open to stop operation at a duty ratio of 0%. Rotation Speed Control Chart Minimum output duty VTH (V) PWM DUTY(%) Duty100% Duty0% VPWML VPWMH RMI CPWM 2.5V 0.5V PWM control variable speed Full speed 0V ON Duty Rotation set to minimum speed RMI voltage VTH voltage ON OFF |
Số phần tương tự - LB11660RV |
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Mô tả tương tự - LB11660RV |
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